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Uniqueness of resource identifiers

From: Graham Klyne <GK@dial.pipex.com>
Date: Mon, 10 Jul 2000 14:53:04 +0100
Message-Id: <>
To: RDF comments <www-rdf-comments@w3.org>

It appears to me that when 'ID=...' is used to name an RDF resource, the 
URI reference thus defined for that resource is not uniquely determined if 
the enclosing document is mirrored or otherwise accessible using different 

RDF M&S section 6 describes forming the URI for an 'ID=' from the base URI 
of the containing document.

I assume that the base URI is determined per RFC 2396, section 5.1.  Absent 
an explicit base URI in the RDF or encapsulating document, this is 
specified to be the URI used to retrieve the entity containing the RDF 
descriptions.  If there are several such URIs that can be used, then the 
defined RDF resources may be differently identified.

Graham Klyne
Received on Monday, 10 July 2000 10:16:35 UTC

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